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$237+ Cheap flights from Michigan to Porto (OPO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — OPO
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Michigan to Porto

Keep the following information in mind while searching for Michigan to Porto flight deals. Data was last updated July 31, 2025.

Round-trip from

$605
(Iberia)

One-way from

$237
(Kiwi.com)

Popular in

April

Cheapest in

January

Average price

$1,450
From Michigan to Porto
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One-way flight from Michigan to Porto
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Highest demand for flights based on searches. 24% potential increase in price ($339 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($78 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Michigan to Porto

Cheapest flights from Michigan to Porto
Explore the most affordable flight options available from Michigan to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Iberia deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/810:11 amORD - OPO
2 stops15h 24mIberia
Thu 10/238:35 pmOPO - ORD
2 stops22h 55mIberia
Deal found 7/30$605
This Mytrip deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/210:40 amORD - OPO
3 stops26h 20mMultiple Airlines
Tue 9/910:50 pmOPO - ORD
2 stops24h 43mMultiple Airlines
Deal found 7/31$608
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:20 amORD - OPO
2 stops16h 20mAmerican Airlines
Sat 11/88:20 amOPO - ORD
2 stops17h 16mAmerican Airlines
Deal found 7/30$612
This Lufthansa deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/53:35 pmORD - OPO
1 stop12h 45mLufthansa
Thu 10/236:15 amOPO - ORD
2 stops19h 40mLufthansa
Deal found 7/30$615
This Orbitz deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2112:50 pmORD - OPO
2 stops17h 00mAir Canada
Thu 11/276:00 amOPO - ORD
2 stops19h 30mAir Canada
Deal found 7/31$617
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/22:20 pmORD - OPO
1 stop11h 25mUnited Airlines
Tue 9/912:50 pmOPO - ORD
2 stops30h 00mUnited Airlines
Deal found 7/31$620
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/136:23 pmMDW - OPO
2 stops17h 32mDelta
Tue 10/216:15 amOPO - MDW
2 stops18h 10mDelta
Deal found 7/30$622
This oojo deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2211:45 pmORD - OPO
1 stop34h 05mTurkish Airlines
Mon 9/2910:55 amOPO - ORD
1 stop28h 45mTurkish Airlines
Deal found 7/30$630
This SWISS deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/57:05 pmORD - OPO
1 stop30h 50mSWISS
Mon 10/208:10 amOPO - ORD
2 stops37h 45mSWISS
Deal found 7/30$631
This FlightHub deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:00 pmORD - OPO
1 stop17h 00mTAP AIR PORTUGAL
Thu 9/2510:25 pmOPO - ORD
1 stop24h 05mTAP AIR PORTUGAL
Deal found 7/30$639
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/195:22 pmGRR - OPO
1 stop11h 23mUnited Airlines
Sat 11/16:00 amOPO - GRR
2 stops19h 41mUnited Airlines
Deal found 7/31$639
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/61:08 pmORD - OPO
2 stops20h 22mDelta
Wed 10/226:15 amOPO - ORD
2 stops21h 04mDelta
Deal found 7/30$641

Cheapflights Fare Finder

 
Customize your flight search to find flights from Michigan to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Michigan to Porto that are best for you.

Fly from

Michigan

Fly to

Porto

Route

Depart

Return

Price

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 10/8

10:11 am-7:35 am

2 stops15h 24m

Porto

Thu 10/23

8:35 pm-1:30 pm

2 stops22h 55m

$605

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 9/2

10:40 am-7:00 pm

3 stops26h 20m

Porto

Tue 9/9

10:50 pm-5:33 pm

2 stops24h 43m

$608

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 10/5

3:35 pm-10:20 am

1 stop12h 45m

Porto

Wed 10/22

6:15 am-7:55 pm

2 stops19h 40m

$615

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Fri 10/17

4:00 pm-3:45 pm

1 stop17h 45m

Porto

Tue 10/28

12:35 pm-11:43 pm

2 stops16h 08m

$620

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Mon 10/13

6:23 pm-5:55 pm

2 stops17h 32m

Porto

Tue 10/21

6:15 am-6:25 pm

2 stops18h 10m

$622

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Mon 8/11

5:10 pm-3:30 pm

1 stop16h 20m

Porto

Wed 8/27

6:15 am-2:40 pm

1 stop14h 25m

$627

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 8/31

6:06 pm-9:35 am

2 stops33h 29m

Porto

Tue 9/9

12:50 pm-8:11 pm

1 stop13h 21m

$628

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Mon 9/22

11:45 pm-3:50 pm

1 stop34h 05m

Porto

Mon 9/29

10:55 am-9:40 am

1 stop28h 45m

$630

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 10/5

7:05 pm-7:55 am

1 stop30h 50m

Porto

Mon 10/20

8:10 am-3:55 pm

2 stops37h 45m

$631

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 8/12

7:10 pm-9:05 am

1 stop31h 55m

Porto

Tue 8/19

8:40 pm-11:55 am

1 stop21h 15m

$636

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 30 results
1
2
3

Best time to book a flight from Michigan to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Michigan with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Michigan to Porto

What is the cheapest month to book a flight from Michigan to Porto?

Currently, January is the cheapest month in which you can book a flight from Michigan to Porto (average of $523). Flying from Michigan to Porto in June is currently the most expensive (average of $1,033). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MI to OPO?

Find hourly flight availability from Michigan to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Michigan to Porto as you normally would.

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated July 31, 2025.
Read through reviews of airlines operating flights from Michigan to Porto, such as Delta, KLM, and Air France. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Michigan to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from Michigan?

    Porto (OPO) is the airport you will fly into if you book a flight from Michigan to Porto. It is only a 6.8 mi journey from Porto (OPO) to Porto’s city center.

  • What are the cheapest airlines to fly from Michigan to Porto one-way?

    One-way options have recently been found by users for as low as $263 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Air Canada from $361 and American Airlines from $364 one-way.

  • What are the most popular routes from Michigan to Porto?

    While some choose either Chicago Midway - Porto or Grand Rapids Gerald R. Ford Intl - Porto, Chicago O'Hare Intl - Porto is the most popular route from Michigan to Porto.

  • Can I find deals for flights from Michigan to Porto that include hotel bookings?

    Yes. In addition to deals on Michigan to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Michigan to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Michigan to Porto.

  • Can I find deals for business class flights from Michigan to Porto?

    Yes. Cheapflights offers flight deals from Michigan to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Michigan to Porto?

    Currently, January is the cheapest month in which you can book a flight from Michigan to Porto (average of $523). Flying from Michigan to Porto in June is currently the most expensive (average of $1,033). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Coimbra

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Michigan to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Michigan to Porto

Discover the top 3 airlines that operate flights from Michigan to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$441Average$1,205FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$568Average$961FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$790Average$1,192FlexibilityNo cancel feeOn-time69%

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